Sunny Beach, Bulgaria: Annual Weather Averages

July is the hottest month in Sunny Beach with an average temperature of 73°F (23°C) and the coldest is January at 37°F (3°C) with the most daily sunshine hours at 11 in July. The wettest month is November with an average of 56mm of rain.
The best month to swim in the sea is in July when the average sea temperature is
75°F (24°C).